Cash register



April 3; 1928. 1,664,910

H. TONSMANN CASH REGISTER Filed March 29, 1924 FIG. 1

Swumtoz Henry Tiinpmlnn LA 6M ml mm,

Patented Apr. 3, 1928.

UNITED STATES PATENT OFFICE.

HENRY TONSMANN, OI SAO PAULO, BRAZIL, ASSIGNOR, BY MESNE ASSIGNMENTS, TOTHE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OFMARYLAND.

CASH REGISTER.

Application filed March 29, 1924. Serial No. 702,856.

This invention relates to cash registers and is shown carried out inconnection with a machine of the type shown in Letters Patent of theUnited States to Cleal and Reinhardt, No. 580,37 8, dated April 13,1897, and Letters Patent to Cleal, No. 747,855, dated Dec. 22, 1903.

An object of this invention is to provide record material feedingmechanism which is under the control of depressible keys.

Another object is to provide a depressible key which may remaindepressed for an indefinite number of operations of the machine andcause the record material feeding mechanism to issue receipts.

With these and incidental objects in view, the invention consists ofcertain novel features of construction and. combinations of parts, theessential elements of which are set forth in appended claims and apreferred form of embodiment of which is hereinafter described withreference to the drawings which accompany and form part of thisspecification.

Of said drawings:

Fig. 1 is a side elevation of a machine showing the improvement addedthereto.

Fig. 2 is a detail view of a portion of the improvement.

Fig. 3 is a detail end view of the feeding rollers with the loweradjustable roller in feeding relation with the upper roller.

Fig. 4 is a detail view of the release key.

The invention is shown as carried out in connection with a key-set,crank or motor operated machine, equipped with a printing mechanism forissuing receipts under control of manipulative means. It comprises theusual amount banks for setting up printing elements, etc., neither ofwhich is disclosed herein. It also comprises a main driving shaft 20suitably journaled in the side frames of the machine, the left handframe is shown at 21 in Fig. 1. This shaft is driven from the crank ormotor, as the case may be, and actuates the printing mechanism, etc., towhich this invention relates.

There are three special transaction keys 22 suitably mounted in theframe member 21, any one of which when depressed will cause a printingmechanism to issue a printed receipt, all of which is well known in theart and fully described in the patents previously referred to.

a Each key 22 has a pin 23 which, as the key is depressed, will engagean angle edge 24 on a detent plate 25 and move the detent upward againstthe tension of a spring 26 until the pin is opposite to the verticalopening 27, when the detent will be returned to normal position by thespring, and will 7 upper edge of a slide 33. The slide is guided at itsright hand end by a. pin 34 and at the left hand end by an oscillatingshaft 35. Secured to the end of the oscillating shaft 35 by a screw 36,is a cam plate 37 which cooperates with a roller 38 carried on the slide33 to move the slide toward the right at each operation of the machineand cause the detent plate 25 to move upward and release the depressedkey 22. The pitman 33 is returned to normal position by a spring 39.

The keys 22 are returned to normal position'and held there by springs 40as usual. The recei t printing and issuing mechanism is contro led fromthe special transaction keys 22 and a receipt key to be hereinafterdescribed. With any one of the above mentioned keys in their depressedposition the receipt feeding rollers will feed the record materialthrough the printer to issue a printed receipt.

When a key 22 is depressed, its pin 23 engages a curved edge 45 of aplate 46 slidably 'mounted on a pitman 47 by two studs 48 fitted toelongated openings 49. The sliding plate 46 is held in its normalposition by a spring 50, one end of which is attached to the uppercorner of the plate and the other end to a pawl 51 loosely mounted on ascrew stud 52 fastened in a plate 53 which is secured to the side frameby the screws 28 and 29.

The sliding plate 46 is provided with a notch 54 which, when said plateis moved by depressing one of the keys 22, will be in position to permita projection 55 on a pawl 56 to enter the notch during the operation ofthe machine. The pawl 56 is pivoted at 57 to a reciprocating plate 58and has a pin 59 normally engaging a shoulder 60 on a lever 61, undertension oi a spring 62. {is the lever 61 moves clockwise, the pin 59wlll continue to rest upon the shoulder 60 until the projection 55enters the notch 54, alter which the lever continues its movement withits inclined edge 63 engaging a roller ti l carried by the reciprocatingplate 58 thereby causing said plate to move toward the left against thetension of a spring 65 which will return the plate to normal during acounterclockwise movement of the lever 61. The plate 58 is slidablysupported on two pins 66 which project from the pitman it into elongatedopenings 6? in the plate.

As the projection 55 on the pawl 58 enters the notch 5% it will alsoenter a notch 72 in the pitman a7. lVitli the pawl 56 in the notches 5aand 72, the pitman a? and plate 46 will move in unison with thereciprocating plate 58 when the lever 61 moves clockwise. The lever isoperated from the driving shaft 20 by a cam 73 secured thereto, whichcooperates with a roller 7 1 carried by the lever. The lever is pivotedon a pin 7 5 supported in the side frame. The roller 74cv is maintainedin engagement with the cam '78 by a spring 76.

The operation 01": the pitman 47 controls the ieedingof record materialby the feed ing rollers 77 and 78. The left hand end of the pitman isconnected to an arm 79 clamped to a rod 80 upon which is securelymounted an eccentric bearing 81 for the roller 7 7. In its normalposition the roller 77 will not engage a flange 82 tormed on the roller7 8 as the rollers are operated, and therefore record material whichextends between these rollers will not be fed along with the rollers innormal position. But when the eccentric bearing 81 is moved clockwise bythe pitman 4C7, the roller 77 will engage the flange 82 with the recordmaterial between the roller and the flange and feed the record materialthrough the printing mechanism in the usual way. The roller 78 issuitably geared to the main drive shaft and in turn drives the roller 77by means of gears as shown in Fig. 3. These gears are never entirely outof mesh with each other regardless of the adjusted position of thebearing 81. V

In addition to the three special transaction keys 22 there is a receiptkey 86 which also operates the record material teed controllingmechanism. This key is adapted to remain in the depressed position foran indefinite number of operations of the machine, the machine issuing areceipt at each operation while the key is in the depressed position.

The receipt key 86 is supported on the plate 58 by three studs 8? whichare provided with heads overlapping the key. The lower end of a lug 88secured to the key 86 engages the curved edge as of the plate l6 to movethe plate to the same extent as the keys 22, hereinbe'iore described. When the key 86 is in its home position a projection on the springactuated pawl 51 engages a. notch in tl e flange part of the key andwhen the ltey is in its depressed position the projection 89 engages asecond notch 91. The lower lip of the notch 90 e:-;- tends outt'romrthekey so as to engage the projection 89 as the key returns to its home)osition. The counter-clockwise movement oi the pawl 51 is limited bythe pawl engaging the left hand key guide stud 87.

The receipt key 86 will remain in the depressed position until releasedby a manually operated release key 92 (Figs. 1 and 4). This release keyis retained in normal position by a spring 93. In depressing the releasekey a flange 9 1 on the lower end of the key engages the pawl 51 anddisengages the projection 89 from the notch 91, allowing the key 86 toreturn to normal positionby the spring 50 moving the plate 46 toward theright.

' l l hile the form of mechanism herein shown and described is admirablyadapted to fulfill the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the one form ofembodiment herein disclosed, for it is susceptible of embodiment invarious forms all coming within the scope of the claims which we follow.V

l l liat is claimed is:

1; In a machine of the class described, the combination of recordmaterial feeding roll ers normally ineffective with one roller hav- )5ing a movable bearing adapted to be moved .to make said rollerseffective, a pitman connected to and adapted to move said bearing,

a driving member, a lever operated by said driving member, areciprocating member operated by said lever member, a latch membercarried by said reciprocating member and retained in its home positionby said lever, a depressible key returned to home position during theoperation of the machine, and a movable member operated by said key andadapted to permit said latch to engage said pitman and move said feedingroller into effective feeding position.

2. In a machine of the class described, the combination of a pair ofrecord material feeding rollers normally inefiective with one rollerhaving a movable bearing adapted to be moved to make said rollersefiective, a pitman connected to and adapted to operate said movablebearing, a plate slidably supported onsaid pitman, a latch membercarried by said sliding plate and adapted to engage said pitman to causesaid sliding plate and said pitman to move in unison, a 1a driving meansadapted to operate said sliding plate, a second plate slidably supportedon said pitman to normally prevent said latch engaging said pitman, anddepressible keys adapted to move said second sliding plate to permitsaid latch member to engage said pitman.

3. In a machine of the class described, the combination of a pair ofrecord material feeding rollers normally ineffective, a movable bearingfor one of said rollers adapted to be moved to make said rollerseffective, a. pitman connected to said movable bearing, a plate slidablysupported on said pit-man, a

latch member carried by said sliding plate and adapted to engage saidpitman to cause said sliding plate and said pitman to move in unison, adriving means adapted to operate said sliding plate, a second plateslidably supported on said pitman to normally prevent said latch fromengaging said pitman, a depressible key adapted to move said secondsliding plate to permit said latch member to engage said pitman, andmeans for retaining said key in depressed position indefinitely.

In testimony whereof I aflix my signature.

HENRY TONSMANN.

